In the wake of unrest over the death of Freddie Gray in police custody, Prince announced he will play a Rally 4 Peace concert on Mothers Day this Sunday at the Royal Farms Arena, the Baltimore Sun reports. Tickets go on sale Wednesday at 5 p.m.

As a symbolic message of our shared humanity and love for one another, attendees are invited to wear something gray in tribute to all those recently lost in the violence, read the concert announcement, which arrived a little more than a week after rioting broke out in the city.

Prince, who also said hes going to talk to Jay Z about streaming the concert on Tidal, is expected to perform Baltimore, a new, unreleased song he wrote about the the unrest in Baltimore and the socio/political issues around the country in the wake of a slew of killings of young black men, according to his spokesperson.